CN111722067A - Withstand voltage tester that security is good - Google Patents
Withstand voltage tester that security is good Download PDFInfo
- Publication number
- CN111722067A CN111722067A CN202010540060.8A CN202010540060A CN111722067A CN 111722067 A CN111722067 A CN 111722067A CN 202010540060 A CN202010540060 A CN 202010540060A CN 111722067 A CN111722067 A CN 111722067A
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- fixedly connected
- tester
- tester body
- wall
- withstand voltage
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000002274 desiccant Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a high-safety withstand voltage tester which comprises a tester body, an adjusting transformer and a controller, wherein an insulating layer is coated on the outer surface of the tester body, a heat dissipation fan is fixedly connected to the right side of the inner wall of the tester body, mounting rods are fixedly connected to the top and the bottom of the left side of the inner wall of the tester body, a heat conduction plate is fixedly connected to one end, away from the inner wall of the tester body, of each mounting rod, and a heat dissipation sheet is fixedly connected to the left side of each heat conduction plate. This withstand voltage tester that security is good, right side fixedly connected with heat dissipation fan through tester body inner wall, the setting of heat dissipation fan has accelerated the inside air flow of tester, has improved radiating efficiency under the effect in the time of heat-conducting plate and fin, and inside the setting up of dust screen makes the difficult entering tester of outside dust, has reduced electrical components's damage rate, has prolonged the life of this tester.
Description
Technical Field
The invention relates to the technical field of a voltage-resistant tester, in particular to a voltage-resistant tester with good safety.
Background
The withstand voltage tester can be called as an electrical insulation strength tester, a dielectric strength tester and the like according to the function of the withstand voltage tester, and the working principle of the withstand voltage tester is as follows: a voltage higher than the normal working voltage is applied to an insulator of the tested equipment for a specified time, the voltage applied to the insulator can only generate small leakage current, the insulation is good, the program control power supply module, the signal acquisition conditioning module and the computer control system form a test system, and 2 indexes of the voltage withstanding instrument are selected: the maximum output voltage value and the maximum alarm current value are tested by applying a specified alternating current or direct current high voltage between the charged part and the non-charged part (generally, the shell) of the electric appliance to check the withstand voltage capability of the insulating material of the electric appliance.
Most present withstand voltage tester insulating effect is not good, the safety problem appears in the use easily, and current withstand voltage tester only dispels the heat through the louvre, and the radiating efficiency is lower, and the radiating effect is not good, and inside the dust got into withstand voltage tester from the louvre easily simultaneously, long-time use can shorten withstand voltage tester's life.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the pressure tester with good safety, and solves the problems that the safety problem is easy to occur in the use process, the heat dissipation efficiency is low, the heat dissipation effect is not good, meanwhile, dust is easy to enter the pressure tester from the heat dissipation holes, and the service life of the pressure tester can be shortened after long-time use.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a withstand voltage tester that security is good, includes tester body, adjusting transformer and controller, the surface coating of tester body has the insulating layer, the right side fixedly connected with heat dissipation fan of tester body inner wall, the equal fixedly connected with installation pole in left top of tester body inner wall and bottom, and the one end fixedly connected with heat-conducting plate that tester body inner wall was kept away from to the installation pole, the left side fixedly connected with fin of heat-conducting plate, the louvre has been seted up in the left side of tester body and the left side that is located the fin, the left side of tester body and the left side swing joint that is located the louvre have a dust screen, the equal fixedly connected with dead lever in left side of left side and the bottom at tester body top, the equal fixedly connected with clamping mechanism in top and bottom of dust screen.
Preferably, the clamping mechanism includes shell and L template, the shell is kept away from one side of L template and the top fixed connection of dust screen, the first spring of bottom fixedly connected with of shell inner wall, the equal fixedly connected with slide rail in both sides of shell inner wall, two sliding connection has the fly leaf between the relative one side of slide rail.
Preferably, one end, far away from the bottom of the inner wall of the shell, of the first spring is fixedly connected with the bottom of the movable plate, one side, close to the shell, of the L-shaped plate penetrates through the shell and extends to the inside of the shell, and one side, far away from the first spring, of the movable plate is fixedly connected with one side, extending to the inside of the shell, of the L-shaped plate.
Preferably, the bottom of the L-shaped plate is movably connected with the top of the tester body, and one end, far away from the tester body, of the fixing rod penetrates through the L-shaped plate and extends to the outside of the L-shaped plate.
Preferably, the right side swing joint at tester body top has the apron, the frame is placed to the bottom fixedly connected with of apron, and places the fixedly connected with baffle between the bottom of frame inner wall and the bottom of apron, the equal fixedly connected with fixture block in both sides of apron bottom, the fixed slot with fixture block looks adaptation is all seted up to the both sides at tester body top.
Preferably, the bottom fixedly connected with connecting rod of fixed slot inner wall, the activity groove with connecting rod looks adaptation is seted up to the bottom of fixture block, logical groove has been seted up to the inside of connecting rod, and leads to equal swing joint between the both sides at groove inner wall top and the both sides of bottom to have the baffle.
Preferably, a second spring is fixedly connected between one side opposite to the baffle plates, an arc-shaped block is fixedly connected to one side of each baffle plate, the two sides of each movable groove are provided with arc-shaped grooves matched with the arc-shaped blocks.
Preferably, the bottom of the inner wall of the tester body is fixedly connected with an insulating plate, the left side of the top of the insulating plate is fixedly connected with the bottom of the regulating transformer, the right side of the top of the insulating plate is fixedly connected with the bottom of the controller, and four corners of the bottom of the tester body are fixedly connected with supporting legs.
Advantageous effects
The invention provides a high-safety withstand voltage tester. Compared with the prior art, the method has the following beneficial effects:
(1) the pressure tester with good safety is characterized in that an insulating layer is coated on the outer surface of a tester body, a heat dissipation fan is fixedly connected to the right side of the inner wall of the tester body, mounting rods are fixedly connected to the top and the bottom of the left side of the inner wall of the tester body, a heat conduction plate is fixedly connected to one end, away from the inner wall of the tester body, of each mounting rod, a heat dissipation fin is fixedly connected to the left side of the heat conduction plate, heat dissipation holes are formed in the left side of the tester body and are positioned on the left sides of the heat dissipation fins, a dust screen is movably connected to the left side of the tester body and is positioned on the left sides of the heat dissipation holes, fixing rods are fixedly connected to the left side of the top and the left side of the bottom of the tester body, a clamping mechanism is fixedly connected to the top and the bottom of the dust screen and comprises a, and the arrangement of the dustproof net ensures that external dust is not easy to enter the inside of the tester, reduces the damage rate of electrical elements and prolongs the service life of the tester.
(2) The pressure tester with good safety is characterized in that a cover plate is movably connected to the right side of the top of a tester body, a placing frame is fixedly connected to the bottom of the cover plate, clamping blocks are fixedly connected to two sides of the bottom of the cover plate, fixing grooves matched with the clamping blocks are formed in two sides of the top of the tester body, connecting rods are fixedly connected to the bottoms of the inner walls of the fixing grooves, movable grooves matched with the connecting rods are formed in the bottoms of the clamping blocks, through grooves are formed in the connecting rods, baffle plates are movably connected between two sides of the top of the inner wall of each through groove and two sides of the bottom of each through groove, a second spring is fixedly connected between one sides opposite to the two baffle plates, arc blocks are fixedly connected to one sides opposite to the two baffle plates, arc grooves matched with the arc blocks are formed in two sides of each movable groove, a drying agent placing frame is arranged, meanwhile, due to the arrangement of the structures such as the cover plate, the clamping block and the connecting rod, the placing frame can be conveniently taken out to replace the drying agent, and the use is convenient.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a cross-sectional view of the housing structure of the present invention;
FIG. 4 is a front view of an insulating layer structure of the present invention;
FIG. 5 is a side view of a heat dissipation fan structure according to the present invention;
FIG. 6 is a cross-sectional view of the cartridge structure of the present invention;
fig. 7 is a partial enlarged view of the invention at a in fig. 6.
In the figure: 1 tester body, 2 regulating transformer, 3 controllers, 4 insulating layers, 5 heat dissipation fans, 6 installation poles, 7 heat-conducting plates, 8 radiating fins, 9 radiating holes, 10 dust screens, 11 fixed poles, 12 clamping mechanisms, 121 shells, 122L type plates, 123 first springs, 124 slide rails, 125 movable plates, 13 cover plates, 14 placing frames, 15 partition plates, 16 fixture blocks, 17 fixed slots, 18 connecting rods, 19 movable slots, 20 through slots, 21 baffle plates, 22 second springs, 23 arc-shaped blocks, 24 arc-shaped slots, 25 insulating plates and 26 supporting legs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a high-safety withstand voltage tester comprises a tester body 1, an adjusting transformer 2 and a controller 3, wherein the internal structure and circuit of the tester body 1 are known by persons skilled in the art and are mature products in the prior art, and detailed description is not provided, an insulating plate 25 is fixedly connected to the bottom of the inner wall of the tester body 1, the arrangement of the insulating plate 25 and the insulating layer improves the safety in the use process, the left side of the top of the insulating plate 25 is fixedly connected with the bottom of the adjusting transformer 2, the right side of the top of the insulating plate 25 is fixedly connected with the bottom of the controller 3, supporting legs 26 are fixedly connected to four corners of the bottom of the tester body 1, a cover plate 13 is movably connected to the right side of the top of the tester body 1, a handle is arranged on the cover plate 13 to facilitate pulling of the cover plate 13, a placing frame 14 is fixedly connected to the bottom of the cover plate 13, and a drying agent is placed in the, dehumidifying the inside of the tester body 1, a clapboard 15 is fixedly connected between the bottom of the inner wall of the placing frame 14 and the bottom of the cover plate 13, clamping blocks 16 are fixedly connected on both sides of the bottom of the cover plate 13, fixing grooves 17 matched with the clamping blocks 16 are formed on both sides of the top of the tester body 1, a connecting rod 18 is fixedly connected with the bottom of the inner wall of the fixing groove 17, a movable groove 19 matched with the connecting rod 18 is formed on the bottom of the clamping block 16, a through groove 20 is formed in the connecting rod 18, baffle plates 21 are movably connected between both sides of the top and both sides of the bottom of the inner wall of the through groove 20, a limiting block is arranged on one side of each baffle plate 21 for limiting the position of each baffle plate 21, a second spring 22 is fixedly connected between the opposite sides of the two baffle plates 21, the second spring 22 can be replaced to ensure the elasticity, arc grooves 24 matched with the arc blocks 23 are formed in two sides of the movable groove 19, only the tops of the arc blocks 23 with arc surfaces enter the arc grooves 24, the arc blocks 23 can conveniently enter and exit the arc grooves 24, the outer surface of the tester body 1 is coated with the insulating layer 4, the right side of the inner wall of the tester body 1 is fixedly connected with a heat dissipation fan 5, the heat dissipation fan 5 is controlled through an external control mechanism which is a remote controller, the top and the bottom of the left side of the inner wall of the tester body 1 are fixedly connected with mounting rods 6, one end, away from the inner wall of the tester body 1, of each mounting rod 6 is fixedly connected with a heat conduction plate 7, the left side of each heat conduction plate 7 is fixedly connected with a heat dissipation fin 8, heat dissipation holes 9 are formed in the left side of the tester body 1 and in the left side of each heat dissipation hole 8, a plurality of heat dissipation, the left side of the top and the left side of the bottom of the tester body 1 are both fixedly connected with a fixing rod 11, the top and the bottom of the dustproof net 10 are both fixedly connected with a clamping mechanism 12, the clamping mechanism 12 comprises a shell 121 and an L-shaped plate 122, the L-shaped plate 122 is provided with a through hole matched with the fixing rod 11, the fixing rod 11 can conveniently enter and exit, the bottom of the L-shaped plate 122 is movably connected with the top of the tester body 1, one end of the fixing rod 11, far away from the tester body 1, penetrates through the L-shaped plate 122 and extends to the outside of the L-shaped plate 122, one side of the shell 121, far away from the L-shaped plate 122, is fixedly connected with the top of the dustproof net 10, the bottom of the inner wall of the shell 121 is fixedly connected with a first spring 123, the first spring 123 can be replaced to ensure elasticity, one end of the first spring 123, far away from the bottom of the inner wall, one side of the movable plate 125 far away from the first spring 123 is fixedly connected with one side of the L-shaped plate 122 extending to the inside of the housing 121, two sides of the inner wall of the housing 121 are both fixedly connected with slide rails 124, and the movable plate 125 is slidably connected between one opposite sides of the two slide rails.
When the dustproof net 10 is used, the heat dissipation fan 5 is started through the external control mechanism, the air flow in the tester body 1 is accelerated, the heat dissipation is accelerated, the heat is guided to the outside of the heat dissipation hole 9 through the heat conduction plate 7 and the heat dissipation fins 8, the dustproof net 10 prevents external dust from entering the tester body 1, when the dustproof net 10 is cleaned, the upper L-shaped plate 122 and the lower L-shaped plate 122 are respectively pulled towards the top and the bottom of the tester body 1 by hands, so that the L-shaped plates 122 drive the movable plate 125 to move towards the upper part of the shell 121, the movable plate 125 stretches the first spring 123, the L-shaped plates 122 move to the top of the fixed rod 11, the L-shaped plates 122 are separated from the fixed rod 11, the dustproof net 10 can be detached, the insulating layer 4 is coated on the outer surface of the tester body 1, the safety in the using process is improved, the desiccant is placed in, pulling the apron 13 upwards, when the apron 13 rebound, drive fixture block 16 rebound, when fixture block 16 received the pulling force, cause the extrusion to the arc piece 23 of connecting rod 18 both sides, arc piece 23 follows the roll-off in the arc groove 24, and arc piece 23 causes the extrusion to baffle 21, and baffle 21 extrudees second spring 22 for fixture block 16 separates with connecting rod 18 completely, can take out placing frame 14 bottom the apron 13, changes the drier.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a withstand voltage tester that security is good, includes tester body (1), adjusting transformer (2) and controller (3), its characterized in that: the outer surface of the tester body (1) is coated with an insulating layer (4), the right side of the inner wall of the tester body (1) is fixedly connected with a heat radiation fan (5), the top and the bottom of the left side of the inner wall of the tester body (1) are both fixedly connected with a mounting rod (6), and one end of the mounting rod (6) far away from the inner wall of the tester body (1) is fixedly connected with a heat-conducting plate (7), a radiating fin (8) is fixedly connected with the left side of the heat conducting plate (7), a radiating hole (9) is formed in the left side of the tester body (1) and positioned on the left side of the radiating fin (8), the left side of the tester body (1) and the left side of the heat dissipation hole (9) are movably connected with a dust screen (10), the left side of the top and the left side of the bottom of the tester body (1) are both fixedly connected with a fixed rod (11), the top and the bottom of the dustproof net (10) are fixedly connected with clamping mechanisms (12).
2. The high-safety withstand voltage tester according to claim 1, characterized in that: clamping mechanism (12) include shell (121) and L template (122), the top fixed connection of one side and dust screen (10) of L template (122) is kept away from in shell (121), the first spring of bottom fixedly connected with (123) of shell (121) inner wall, the equal fixedly connected with slide rail (124) in both sides of shell (121) inner wall, two sliding connection has fly leaf (125) between the relative one side of slide rail.
3. The high-safety withstand voltage tester according to claim 2, characterized in that: one end, far away from the bottom of the inner wall of the shell (121), of the first spring (123) is fixedly connected with the bottom of the movable plate (125), one side, close to the shell (121), of the L-shaped plate (122) penetrates through the shell (121) and extends to the inside of the shell (121), and one side, far away from the first spring (123), of the movable plate (125) is fixedly connected with one side, extending to the inside of the shell (121), of the L-shaped plate (122).
4. The high-safety withstand voltage tester according to claim 2, characterized in that: the bottom of the L-shaped plate (122) is movably connected with the top of the tester body (1), and one end, far away from the tester body (1), of the fixing rod (11) penetrates through the L-shaped plate (122) and extends to the outside of the L-shaped plate (122).
5. The high-safety withstand voltage tester according to claim 1, characterized in that: the right side swing joint at tester body (1) top has apron (13), frame (14) are placed to the bottom fixedly connected with of apron (13), and place fixedly connected with baffle (15) between the bottom of frame (14) inner wall and the bottom of apron (13), the equal fixedly connected with fixture block (16) in both sides of apron (13) bottom, fixed slot (17) with fixture block (16) looks adaptation are all seted up to the both sides at tester body (1) top.
6. The high-safety withstand voltage tester according to claim 5, characterized in that: the bottom fixedly connected with connecting rod (18) of fixed slot (17) inner wall, movable groove (19) with connecting rod (18) looks adaptation is seted up to the bottom of fixture block (16), logical groove (20) have been seted up to the inside of connecting rod (18), and lead to equal swing joint between the both sides at groove (20) inner wall top and the both sides of bottom and have baffle (21).
7. The high-safety withstand voltage tester according to claim 6, characterized in that: two fixedly connected with second spring (22), two between the relative one side of baffle (21) the equal fixedly connected with arc piece (23) in one side that baffle (21) deviates from mutually, arc wall (24) with arc piece (23) looks adaptation are all seted up to the both sides of activity groove (19).
8. The high-safety withstand voltage tester according to claim 1, characterized in that: the bottom fixedly connected with insulation board (25) of tester body (1) inner wall, and the left side at insulation board (25) top and the bottom fixed connection of adjusting transformer (2), the right side at insulation board (25) top and the bottom fixed connection of controller (3), the equal fixedly connected with supporting leg (26) in four corners of tester body (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540060.8A CN111722067A (en) | 2020-06-12 | 2020-06-12 | Withstand voltage tester that security is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540060.8A CN111722067A (en) | 2020-06-12 | 2020-06-12 | Withstand voltage tester that security is good |
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| CN111722067A true CN111722067A (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010540060.8A Pending CN111722067A (en) | 2020-06-12 | 2020-06-12 | Withstand voltage tester that security is good |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665335A (en) * | 2021-12-23 | 2022-06-24 | 国网宁夏电力有限公司宁东供电公司 | Novel socket power consumption intelligence energy-saving equipment |
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Application publication date: 20200929 |